Toothbrush



FIG. 1 is a plan view of the top of a toothbrush showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a plan view of the bottom thereof;

FIG. 4 is an enlarged left end elevational view thereof;

FIG. 5 is an enlarged right end elevational view thereof; and,

FIG. 6 is an enlarged perspective view theroef.

The ornamental design for a toothbrush, as shown an described.